scholarly journals Histologic changes of nonbiodegradable and biodegradable biomaterials used to repair right ventricular heart defects in rats

2002 ◽  
Vol 124 (6) ◽  
pp. 1157-1164 ◽  
Author(s):  
Tsukasa Ozawa ◽  
Donald A.G. Mickle ◽  
Richard D. Weisel ◽  
Nobuya Koyama ◽  
Harvey Wong ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Heart Defects ◽  
Biodegradable Biomaterials ◽  
Histologic Changes

scholarly journals Parachute tricuspid valve: a systematic review

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Shi-Min Yuan
Keyword(s):  
Systematic Review ◽  
Survival Rate ◽  
Right Ventricular ◽  
Tricuspid Valve ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Heart Defects ◽  
Diagnostic Methods ◽  
Interventional Treatment ◽  
Presenting Symptoms

Abstract Background A parachute tricuspid valve is a very rare congenital cardiac anomaly. Its morphological features and clinical implications have not been sufficiently described so far. The purpose of the present systematic review is to disclose the morphological and clinical characteristics of parachute tricuspid valve, and to discuss its diagnostic methods, treatments and patients’ outcomes. Main body The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement guidelines were followed in this systematic review. Publications were systematically searched in the PubMed, Highwire Press, and the Cochrane Library databases. By comprehensive retrieval of the pertinent literature published between 1979 and 2019, 13 reports were collected with 14 patients recruited into this study. Their ages ranged from neonate to 52 years old with a median age of 23 years. Tricuspid valve regurgitation of a less-than-severe degree was seen in 6 (60%) patients, tricuspid valve stenosis was present in 3 (30%) patients and normally functioning tricuspid valve was noted in 1 (10%) patient. All patients had a single papillary muscle in the right ventricle. The chordae tendineae could be normal in length and thickness, or elongated, or shortened and thickened. Forty percent of the patients were asymptomatic or with only mild symptoms and did not need a surgical or interventional therapy, and 6 (60%) patients were indicated for a surgical/interventional treatment due to their severe presenting symptoms, associated congenital heart defects, and the resultant severe right ventricular inflow obstruction and (or) tricuspid stenosis. Patients’ outcomes varied depending on the substantial status of the patients with a survival rate of 70% and mortality rate of 30%. Conclusion A few patients with a parachute tricuspid valve are asymptomatic or only with mild symptoms and a surgical or interventional treatment is not required. The surgical/interventional indications for parachute tricuspid valve patients are their severe presenting symptoms, associated congenital heart defects, and the resultant severe right ventricular inflow obstruction and (or) tricuspid stenosis. The survival rate of this patient setting is satisfactory.

scholarly journals Right ventricular outflow tract reconstruction in adolescents and adults after previous repair of congenital heart defects

2012 ◽  
Vol 153 (31) ◽  
pp. 1219-1224 ◽  
Author(s):  
István Hartyánszky ◽  
László Székely ◽  
László Szudi ◽  
Sándor Mihályi ◽  
Krisztina Kádár ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Congenital Heart ◽  
Heart Defects ◽  
Right Ventricular Outflow Tract ◽  
Right Ventricular Dysfunction ◽  
Ventricular Outflow Tract ◽  
Pulmonary Valve Replacement ◽  
Outflow Tract ◽  
Adult Size ◽  
Adolescents And Adults

Due to successful surgical treatment of congenital heart defects in infants and children, the number of patients who reach the adolescent/adult age is continuously increasing. Aims: The authors sought to identify the short- and medium-term outcomes of reconstruction of right ventricular outflow tract in adolescents and adults who underwent surgical intervention for congenital heart defect in infancy or early childhood. Methods: Between 2001 and 2012, 48 patients (age: 15–39, mean 21 years) (30 tetralogy of Fallot, 11 pulmonary atresia + ventricular septal defect, 6 transposition of great arteries + ventricular septal defect + left ventricular outflow tract obstruction, and 1 truncus arteriosus) had repeat operation because of right ventricular dysfunction. All patients previously underwent right ventricular outflow tract procedures in early childhood. Results: In 31 patients, the small homograft, and in 9 patients the transannular-paths were replaced for “adult-size” homograft. Bioprosthetic pulmonary valve replacement was performed in pulmonary (6 patients) and homograft annuli (2 patients). In 14 patients, resection of the right ventricular outflow tract aneurism was also necessary to be performed. There was no early and mid-time (10 years) mortality. In 97.5% of patients with homograft-re-implantation, there was no need for repeat intervention for 5 years. Conclusions: The right ventricular outflow tract restoration in adolescents and adults is an effective procedure. The reconstruction should be performed in early adolescent period to prevent right ventricular dysfunction. The authors prefer using bioprosthetic pulmonary valve replacement in patients with adult-size pulmonary or homograft annulus. Orv. Hetil., 2012, 153, 1219–1224.

Novel Totally Robotic Repair of Right Ventricular Outflow Tract Obstruction

2015 ◽  
Vol 10 (4) ◽  
pp. 285-287 ◽  
Author(s):  
Changqing Gao ◽  
Ming Yang ◽  
Cangsong Xiao ◽  
Huajun Zhang
Keyword(s):  
Right Ventricular ◽  
Septal Defect ◽  
Da Vinci ◽  
Heart Defects ◽  
Pulmonary Stenosis ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Da Vinci Si ◽  
Surgical System

Right ventricular outflow tract (RVOT) obstruction is among the commonest congenital heart defects in the grown-up, and pulmonary stenosis is the dominant subtype. We described our successful novel surgical technique of totally robotic antegrade RVOT repair in two cases of pulmonary stenosis with concomitant repair of atrial septal defect using da Vinci SI Surgical System (Intuitive Surgical, Inc, Sunnyvale, CA USA) with excellent surgical outcome. We conclude that robotic antegrade repair of the valvular and subvalvular subset of RVOT obstruction is feasible in adults.

Comparison of Right Ventricular Stroke Work for Tetralogy Patient and Normal Subject

2008 ◽  
Author(s):  
Ashish Das ◽  
William Gottliebson ◽  
Rupak K. Banerjee
Keyword(s):  
Right Ventricular ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Pulmonary Valve ◽  
Heart Defects ◽  
Pulmonary Stenosis ◽  
The United States ◽  
Stroke Work ◽  
Loading Conditions ◽  
Clinical Issue

Tetralogy of Fallot (TOF), also called blue-baby syndrome is one of the most common congenital heart defects in children after infancy and is estimated to account for 10% of all congenital heart defects [3]. TOF consists of four interrelated lesions: i) ventricular septal defect ii) Pulmonary stenosis iii) Right ventricular (RV) hypertrophy and (iv) Overriding Aorta [3]. TOF has been successfully repaired for several decades (Fig. 1). There are now an estimated 100,000 adult “repaired TOF” patients in the United States alone. As a result, long-term sequelae of the disease and repair have become important clinical issue. Specifically, residual pulmonary valve insufficiency (PI) is one such accepted and often unavoidable sequela. PI, when severe, abnormally alters the RV loading conditions, thereby triggering RV hypertrophy and dilatation. In turn, RV dilatation can evolve into irreversible RV myocardial contractile dysfunction, and has been related to sudden death in many “repaired TOF” patients. To normalize RV loading conditions, pulmonary valve replacement is often necessary and should be performed prior to the onset of irreversible RV myocardial damage.

Radiofrequency Catheter Ablation of Right Ventricular Tachycardia Late After Repair of Congenital Heart Defects

Circulation ◽  
1996 ◽  
Vol 94 (8) ◽  
pp. 1902-1908 ◽  
Author(s):  
Bernd-Dieter Gonska ◽  
Kejiang Cao ◽  
Johann Raab ◽  
Georg Eigster ◽  
Heinrich Kreuzer
Keyword(s):  
Ventricular Tachycardia ◽  
Catheter Ablation ◽  
Right Ventricular ◽  
Congenital Heart Defects ◽  
Radiofrequency Catheter Ablation ◽  
Congenital Heart ◽  
Heart Defects
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